The Model W9401DE was designed IMD Free. Standard two +43 dBm carriers produce less than 130 dBc of IMD, fully meeting GSM standards when Type N connectors are utilized. Full GSM band coverage, < 1.0 dB insertion loss. Mid band Rx/Tx isolation is > 85 dB. Return loss is > 18 dB. Power capability is > 20 watts, (SMA) and > 60 watts Type N-F. The size of the devices is 1.5inches× 3inches× 6inches.